Rigor is not a substitute for imagination.

People who design decision aids and information technologies usually try to help people perform their jobs better. But insights can show us how to perform our jobs differently. And so the decision aids and technologies can get in the way of insights!

There needs to be a certain structure to a situation, a certain predictability that allows you to have a basis for the intuition.

You need to take your gut feeling as an important data point, but then you have to consciously and deliberately evaluate it, to see if it makes sense in this context.

Most corporate decisions aren't going to meet the test of high validity. But they're going to be way above the low-validity situations that we worry about.

If a situation is very, very turbulent, it has low validity, and there's no basis for intuition.

You shouldn't trust the judgments of stock brokers picking individual stocks.